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arXiv · 1807.09027

Equivalence of Sobolev norms involving generalized Hardy operators

Rupert L. Frank·Konstantin Merz·Heinz Siedentop
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Abstract

We consider the fractional Schr\"odinger operator with Hardy potential and critical or subcritical coupling constant. This operator generates a natural scale of homogeneous Sobolev spaces which we compare with the ordinary homogeneous Sobolev spaces. As a byproduct, we obtain generalized and reversed Hardy inequalities for this operator. Our results extend those obtained recently for ordinary (non-fractional) Schr\"odinger operators and have an important application in the treatment of large relativistic atoms.

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Rupert L. Frank, Konstantin Merz, Heinz Siedentop. 2018-07-24. Equivalence of Sobolev norms involving generalized Hardy operators. https://doi.org/10.1093/imrn%2Frnz135

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